K.H. Goh และ K. Jeyatharan and D. Wen. (2012) Understanding the stiffness of soils in Singapore from pressuremeter testing. <i>The Geotechnical Engineering Journal of the SEAGS & AGSSEA</i>, <i>43</i>(4), pp 56-62.K.H. Goh และ K. Jeyatharan and D. Wen. "Understanding the stiffness of soils in Singapore from pressuremeter testing". The Geotechnical Engineering Journal of the SEAGS & AGSSEA 43 (2012):pp 56-62.K.H. Goh และ K. Jeyatharan and D. Wen. Understanding the stiffness of soils in Singapore from pressuremeter testing. Southeast Asian Geotechnical Society:ม.ป.ท. 2012.